Cosplay Q&A

Not sure if anyone is watching this thread anymore, but I'll give it a shot!

Being a newbie to cosplay and looking for ideas (thanks 91.8 The Fan for all of those great cosplay galleries!) Are there any particular websites that are "THE" place to shop for cosplay stuff?

I'm trying to put together a simple cosplay for my first go around. Most likely the SSS uniform for the guys in Angel Beats! I've tried all sorts of google searches, but they come up pretty dry or are WAY off in design. Please HALP! Thanks! =)